Nature preserve in Costa Rica was meant to protect local ecosystem but insects are disappearing
Update: 2025-10-09
Description
Insect populations around the world are plummeting, even in areas meant to be protected from environmental harm. Daniel Janzen and Winnie Hallwachs, research partners and spouses, have watched this unfold for years from the Guancaste Preserve in Costa Rica. They spoke with The World's Host Marco Werman about their observations.
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